CHECKPOINT

Name

CHECKPOINT -- force a transaction log
checkpoint

Synopsis

CHECKPOINT

Description

Write-Ahead Logging (WAL) puts a checkpoint in the transaction
log every so often. (To adjust the automatic checkpoint interval,
see the run-time configuration options checkpoint_segments
and checkpoint_timeout.)
The CHECKPOINT command forces an
immediate checkpoint when the command is issued, without waiting
for a scheduled checkpoint.

A checkpoint is a point in the transaction log sequence at
which all data files have been updated to reflect the information
in the log. All data files will be flushed to disk. Refer to
Chapter 28 for more information about the
WAL system.

Only superusers can call CHECKPOINT.
The command is not intended for use during normal operation.